CompoundList
Molecular formula

C9H9NO

574 compounds have this formula on CompoundList.

Molar mass
147.18g/mol
Monoisotopic mass
155.1186Da
Atoms
20
Elements
4
Rings plus double bonds
6

The formula C9H9NO describes a molecule made of 9 carbon atoms, 9 hydrogen atoms, 1 nitrogen atom and 1 oxygen atom. It is written in Hill notation: carbon first, then hydrogen, then the other elements in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.

Elemental composition

  • C Carbon × 973.45%
    12.011 × 9 = 108.099 g/mol
  • H Hydrogen × 96.16%
    1.008 × 9 = 9.072 g/mol
  • N Nitrogen × 19.52%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 110.87%
    15.999 × 1 = 15.999 g/mol
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Compounds with the formula C9H9NO

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 101 to 200 of 574 compounds

Frequently asked questions

What is the molar mass of C9H9NO?

The molar mass of C9H9NO is 147.18 g/mol, calculated from standard atomic weights for 9 carbon atoms, 9 hydrogen atoms, 1 nitrogen atom and 1 oxygen atom. The monoisotopic mass is 155.1186 Da.

How many compounds have the formula C9H9NO?

CompoundList lists 574 compounds with the molecular formula C9H9NO, including 5-Ethynyl-2-methoxyaniline, 3-((1R)-1-Hydroxyethyl)benzonitrile, 2-Cyclopropylpyridine-3-carbaldehyde. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.

What is the degree of unsaturation of C9H9NO?

C9H9NO has a degree of unsaturation of 6. That is the total number of rings and pi bonds (a double bond counts as one, a triple bond as two) in any structure with this formula.